how to get length of a string "on the fly"?

flat assembler
Message board for the users of flat assembler.

Index > Windows > how to get length of a string "on the fly"?

Author

Thread

zhak

Joined: 12 Apr 2005
Posts: 501
Location: Belarus

zhak 15 Jul 2008, 08:42

Hi, some APIs (WriteConsole, for example) need number of characters to be passed as one of params. is there any macro that helps doing so?
for example, to be able to do smth like

invoke WriteConsole, [hStdOutput],szMessage,lengthof.szMessage,Var,0

...
szMessage db 'hello, world!',0

15 Jul 2008, 08:42

Grom PE

Joined: 13 Mar 2008
Posts: 114
Location: i@grompe.org.ru

Grom PE 15 Jul 2008, 09:00

I use this:

Code:

struc dbs [data]
{
  common
  . db data
  .size = $ - .
}

invoke WriteConsole, [hStdOutput],szMessage,szMessage.size,Var,0
...
szMessage dbs 'hello, world!',0

15 Jul 2008, 09:00

zhak

Joined: 12 Apr 2005
Posts: 501
Location: Belarus

zhak 15 Jul 2008, 10:24

it works, thx a lot! I even extended it to get size with or without terminating null char Smile

)

struc dbs [data]
{
common
. db data
.size = $ - . - 1
.sizez = $ - .
}

15 Jul 2008, 10:24

asmcoder

Joined: 02 Jun 2008
Posts: 784

asmcoder 16 Jul 2008, 18:47

[content deleted]

16 Jul 2008, 18:47

< Last Thread | Next Thread >

Forum Rules:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum